# How to write Pi in python

In the python language the value of Pi (π) is assigned to the constant **math.pi** of the math library.

import math

math.pi

The constant math.pi contains the value 3.141592653589793.

It can be used directly in scripts, without having to manually assign the Pi value to a variable each time.

## Examples

__Example 1__

This script calculates Pi divided by two.

import math

x=math.pi/2

print(x)

The result of the script is as follows:

1.5707963267948966

__Example 2__

This script multiplies Pi by two in the print statement

import math

print(math.pi*2)

The output result is the following:

6.283185307179586

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